Extension roller screen



1964 J. K. MALOUF ETAL 3,

EXTENSION ROLLER SCREEN Filed July 11, 1962 2 Sheets-Sheet 1 r 60 uvvzwroks Jean' K. 174L001 Rosa/re PARENT PATENT AGENT Nov. 3, 1964 J. K. MALOUF ETAL EXTENSION ROLLER SCREEN 2 Sheets-Sheet 2 Filed July 11, 1962 INVENTORS Jean K HALOUF Raaairo FARE/V7 QM M PATENT AGENT United States Patent 3,155,141 EXTENSION ROLLER SCREEN Jean K. Malauf, 6307 25th Ave, Montreal, Quebec,

Canada, and Rosaire Parent, Montreal, Quebec,

Canada; said Parent assignor to said Malouf Filed July 11, 1962, er. No. 2119,1911 Elaims priority, application Canada Dec. 8, 1961 1 Elaine. (ill. 160-27) The present invention relates to improvements in roller screens for slidable sash type windows, in which the screening material is unwound from a tension roller as the sash is raised and conversely is wound on the roller as the sash is lowered, and in which two assemblies of tension rollers and screen sections are arranged for endwise adjustment so that the roller screen may fit windows of various width.

More particularly, the present invention relates to improvements of the extension roller screen of US. Patent 2,929,444 of March 26, 1960 for Extension roller Screen inventor Salomon K. Mahloutf, which comprises a pair of upper and lower frame members being secured on the sill of the window within the guiding channel for the outer window sash, said lower frame members con stituting housings for roller means for the screening material, the screening material being adapted to directly overlap the outer lateral faces of the parting bead extending between the inner and outer window sashes, such that insects cannot penetrate the room and side guards are eliminated between the side edges of the screen and the window frame.

The main object of the present invention resides in the provision of means for improving the mounting of the roller assembly for the screen sections in the lower pair of housing members, said means facilitating the assembly of the various elements of the roller or reeling means, and moreover permitting a much smoother and frictionless reeling and unreeling of the screen material.

Another object of the present invention resides in the provision of improved means for slidably connecting the two lower housing members and for locking the same against detachment once assembled.

Another object of the present invention resides in the provision of improved means for attaching the upper pair of frame members to the lower sash member, so that said upper pair of frame members can be attached by unskilled persons, and which provide positive means to prevent detachment of the screens from the lower sash member from the outside of the window by unauthorized persons.

The foregoing and other important objects of the present invention will become more apparent during the following disclosure and by referring to the drawings, in which:

FIGURE 1 is a perspective view seen from the outside of a window showing the extension roller screen in accordance with the present invention in operative position;

FIGURE 2 is a cross-sectional elevation of part of the vindow and of the extension roller screen in operative position;

FIGURE 3 is a plan section of the extension roller screen assembly, said section being taken along line 33 of FIGURE 6;

FIGURE 4 is an exploded perspective view of the reeling assembly in one of the lower housing members, said assembly being shown turned through one quarter turn counterclockwise from its normal position to more clearly see its parts;

FIGURE 5 is an exploded perspective view of the reeling assembly of the other of the lower housing member also shown turned one quarter turn counterclockwise from its normal position;

ifiil ib Patented Nov. 3, I964 FIGURE 6 is a crosssection of the assembled pair of lower housing members;

FIGURE 7 is a partial exploded perspective view of the means for attaching the upper pair of frame members to the lower sash member of the inner window sash; and

FIGURE 8 is a partial perspective view or" some of the elements of the two lower housing members and showing how the same are assembled for sliding engagement and also showing the means for locking the two housing members in assembled position.

Referring now more particularly to the drawings in which like reference characters indicate like elements throughout, the extension roller screen of the invention comprises a pair of lower housing members 1 and 2 slid ably interconnected for endwise adjustment and each housing a roller assembly 3 and 4 respectively for screening material sections 5 and 6 which issue in overlapping relationship from the lower housing members 1 and 2 and which are attached at their upper edge to a pair of telescopically engaged upper frame members 7 and 8 respectively, adapted to be removably attached in outwardly spaced relation to the lower sash member 9 of the inner window sash 10 which is vertically slidable within'the inner guiding channel 11 of a window frame 12. Each upper frame member 7 is in the shape of a channel with inturned lips as shown in FIGURE 7, the lower lip being extended by a slit flange 13 and 14 respectively for receiving and gripping the upper edge of the screen sections 5 and 6. The upper frame members are provided with dovetailed grooves 15 and 16 respectively for receiving and retaining a sealing strip 64 in overlapping position adapted to contact the outer face of the lower sash memher 9.

As shown in FIGURE 7, L-shaped brackets 17 and 18 have a horizontal leg with an enlarged outer end slidably insertabie within the channels of upper frame members 7 and 8 respectively. The vertical leg of each bracket 17, 18 has at its lower end a curved portion 19 and 20 which is laterally insertable within the upper curved portion 21 of a retainer member 22 which is screwed at its lower end to the outer face of the lower sash member, as shown in FIGURE 2, curved portion 21 being spaced from lower sash member 9 for the lateral passage of the vertical leg of bracket 17 or 1.8.

With these attaching means, it is easy to aflix the screen to the sash by simply pushing the brackets 17 laterally to register with the retaining members 22, the brackets being accessible in the space between the screen sections 5, 6 and the lower sash member, as shown in FIGURE 2. On the other hand, once the screen is attached to the sash, it cannot be detached from the exterior of the window because the brackets 1'7, 18 are not accessible.

Because the brackets 17, 18 are slidable within the upper frame members 7 and 8 it is easy to bring said brackets 17, 18 in register with the retaining members 22 for any endwise adjustment of the two frame members 7 and a.

The lower housing member 1 is made of a tubular sheet metal element 23 providing a rearwardly extending top wall 24 inwardly bent at its free edge to provide an inner flange 25 for guiding the screen section 5 issuing from said housing member 1 along theouter face of the parting beads 26 between the inner and outer sash guiding channels 11 and 34 of the window frame. The sheet metal member 23 is closed at the ends of the housing member 1 by outer. and inner end walls 27 and 28 respectively preferably made of plastic. The housing memher 1 also comprises a partition wall 2? made of plastic. Walls 27, 28 and 29 have lugs 30, 31 and'32 respectively engaging the flange 25 of the top wall 24.

Outer end wall 27 has an upwardly extending ear 33 having a hole for securing said end wall to the outer guiding channel 34 of the window frame 12. The three walls 27, 28 and 29 have grooves 35, 36 and 37 respectively for receiving the L-shaped flange 38 at the top edge of the inner side Wall formed by sheet metal member 23.

Outer end wall 27 has a cavity 39 rotatably receiving a flanged cap 40 made of plastic, such as polyethylene and itself fitted over the end of a reeling rod 41 which is longitudinally slitted for receiving the inner end of the screen section 5, the latter being wound on rod 41. The outer end of reeling rod 41 is fitted within a plastic bushing 42 in the form of a cylindrical element closed at its outer end and provided at its inner end with a circular radial flange 43. Bushing 42 enters and is rotatably mounted within a stepped bore 44 made in partition 29, with flange 43 abutting the step of bore 44 and with bushing 42 protruding from the other face of partition 29. The outer end of reeling rod 41 and bushing 42 are provided with registering transverse holes 45 for receiving and hooking the end of a winding coil spring 46 which extends between partition 29 and inner end wall 28. The other end of spring 46 is hooked to a pawl member 47 made of plastic in the form of a spindle with a circular flange 48 provided with pawl teeth 4? at its inner face. The inner end of coil spring 46 is hooked to pawl member 47 by engaging a transverse hole made in the end of the spindle of the pawlmember, and the latter fits within a circular cavity 50 made in the inner end wall 28 with the pawl teeth 459 in engagement with ratchet teeth 51 made in the bottom of cavity 50 and with the end of the spindle of pawl member 47 protruding to a hole 52 (see FIGURE 5) made in inner end wall 28. The free end of the spindle of pawl member is provided with a transverse groove (see corresponding groove 53' of pawl member 47', described hereinafter) which serves to rotate the pawl member 47 by means of a screwdriver or the like in order to adjust the tension of the coil spring 46. The coil spring is enclosed in a tube 54, one end of which fits over a tubular flange 55 protruding from the partition 29 and coaxial with the stepped bore 44, while the other end of tube 54 engages cavity 50 and presses against a coiled spring 63 abutting the circular flange 48 of the pawl member 47.

The housing member 2 is made of a tubular sheet metal member 56 of generally square cross-section providing a longitudinal slit 57 along its inner lateral wall which is defined by an inner lip 58; the sheet metal tubular member 56 has also along the part of its length in register with the screen section 6, a slit made at the outer top corner 59, (this slit not shown in the drawings) and serving for the issue of screen 6 from the housing. The sheet metal member 56 is closed at its ends by outer end wall 27', inner end wall 28' and has a partition wall 29. The screen section 6 is wound on reeling rod 41' which is journaled in outer end wall 27' and partition 29' by means of a flange cap 40' engaging caw'ty 39' of outer end wall 27, and at the other end by means of a bushing 42' having a flange 43 and engaging the stepped bore 44' made in partition 29'. The bushing 42' and reeling rod 41 are hooked to a coil spring 46', the other end of which is hooked to pawl member 47' which engages the cavity 59' made in the inner end wall 28. A tube 54 surrounds the coil spring 46 and fits over tubular flange 55' of partition 29 at one end and at its other end enters the cavity 50 to abut against spring 63 which in turn abuts against the flange 48' of pawl member 47'.

The two inner walls 28 and 28 of the housing members 1 and 2 respectively are provided with hooks 69 and 60' which serve to mutually attach the two housing members 1, 2 while allowing endwise slidable movement relative to each other. Hook 60 engages slit 57 and lip 58 of housing member 2 while book 6% engages flange 38 of housing member 1. To assemble the two housing members, the books 60' and at are successively brought into register with a notch made in the flange 38 of housing 1 and a similar notch 61 made in the lip or L-shaped flange 58 of housing 92. Once the hooks are in en* gagernent, a flap 62 of flange 58 is bent down (as shown in FIGURE 8) thereby locking the two housing members in assembled position because they prevent the book 60 from again registering with the notch 61.

The two housing members are fitted side by side with the rolls of screen sections 5 and 6 at opposite ends so that said screens issue from the housings in overlapping position to slide upon the outer lateral faces of the parting beads 26 of the window sash when the sash is raised or lowered.

Endwise adjustment of the housing members and upper frame members serve to fit the Width of the window, and the housing members are secured in position on the sill of the window by means of cars 33 and 33.

The provision of the flanged cap 40, 40' and bushing 42, 42' as journals for the reeling rod 41, 41 makes for very smooth rotation of the reeling rod and ease in reeling and unreeling the screen. Moreover, the bushing 42 avoids the necessity of making the reeling rod 41 with a reduced end portion, as was previously made in the Canadian Patent 590,228 above noted.

The means for attaching the upper frame members 7 and 8 to the lower sash member 9, shown in FIG- URE 7, considerably facilitate said attachment by persons unskilled in the mechanical arts and also positively prevent a burglar or any unauthorized person from unhooking the screens from the sash at the exterior of the window, contrary to the above noted Canadian Patent 590,228, in which it was a simple matter for an unauthorized person to simply lift the upper frame members to unsecure the same from the sash.

Finally, the locking flap 62 of FIGURE 8 provides a simple means for locking the two housing members against mutual separation.

While a preferred embodiment in accordance with the invention has been illustrated and described, it is understood that various modifications may be resorted to with out departing from the spirit and scope of the appended claim.

What we claim is:

In an extension roller screen for sash type windows comprising a pair of upper frame members arranged in telescopic engagement for sliding endwise adjustment to each other, bracket means for securing said upper frame members to the lower member of a window sash in outwardly spaced relationship therewith such that the outer ends of said upper frame members overlap and slidably contact the outer lateral faces of the sash guiding rails associated with said window sash on the outside of the latter, sealing strips secured to said upper frame members and contacting said lower sash member, a pair of screen housing members arranged in side to side relation and united along their adjacent side edges for sliding endwise adjustment relative to each other in cooperation with the corresponding upper frame members, a screening strip secured at one end to one of said upper frame members and at its other end to the corresponding housing member, and a second screening strip normally disposed in overlapping relation with said first strip and secured at one end to the remaining upper frame member and at its other end to the remaining corresponding housing member, roller means mounted in said housings for separately reeling and unreeling said screening strips to facilitate adjustment as to the height of said screening strips, the outer end of each housing member adapted to fit within the guiding channel for a window sash disposed outwardly of and adjacent the window sash pro vided with said bracket means and said roller means adapted to overlap the outer lateral faces of said rails so that the marginal outer portions of said screening strips will also overlap said outer lateral faces and said housings having guiding means for guiding said screening strips with their marginal portions in sliding contact with said lateral faces, wherein each said upper frame member has a channel shaped cross-section with inward lips, said bracket means for securing said upper frame members to the lower member of a window sash comprising L-shaped brackets each consisting of a horizontal leg and a vertical leg, said horizontal leg having an enlarged outer end slidably fitted within the associated channel shaped upper frame member, said vertical leg having a curved portion at its lower end, upright retainer members secured to said lower sash member at their lower end and providing a curved upper portion 6 spaced from said sash member for the lateral passage of the vertical leg of said bracket members with the curved portion of said vertical leg fitting the curved portion of the retainer member between the latter and the lower sash member.

References (Iited in the file of this patent UNITED STATES PATENTS 1,932,475 Peteler Oct. 31, 1933 2,379,120 Turner June 26, 1945 2,595,508 Bridges May 6, 1952 2,929,444 Mahlouff Mar. 22, 1960 

